While Portland Timbers first-year forward Gaston Fernandez has flourished to start the regular season, first-year center back Norberto Paparatto has struggled at times.

Paparatto, the Argentine who was signed during the off-season to bolster the back line, has had some problems adjusting to the physicality of MLS.

Paparatto couldn't handle Chicago forward Quincy Amarikawa on the play that eventually led to a foul inside the penalty box and the Fire being awarded a penalty kick. Midfielder Jeff Larentowicz converted the PK to give the Fire a 1-0 lead early in the first half before the Timbers scored late for a 1-1 draw Sunday afternoon.

Paparatto also failed to win an in-air challenge with Philadelphia midfielder Maurice Edu and couldn't clear a corner from Cristian Maidana. Edu flicked the ball toward Jack McInerney, who headed the ball in for the goal in the Timbers' 1-1 draw against the Union March 8.

Portland coach Caleb Porter voiced support for Paparatto, who is adjusting to MLS play.

"He's another guy who's just been here a couple of months," said Porter, referring to Paparatto and Fernandez. "Knowing that, he's adjusting good."

Paparatto may be adjusting, but the Timbers' defense has remained consistently solid. They have conceded six goals in nine games (preseason and regular season) and none of the scores have occurred during run of play and they didn't allow a set piece goal against the Fire.